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  • Android Gallery View Update Images

    - by xger86x
    Hi, i have a question about using GalleryView. At first, i set five "default images" to show from drawable directory. But after, i want to run an Async Task in which i download the images, save them and show them in the gallery. For that i created the following Adapter: public class ImageAdapter extends BaseAdapter { int mGalleryItemBackground; private Context mContext; private ArrayList<Integer> mImageIds = new ArrayList<Integer>(); private ArrayList<Drawable> mImageDrawables = new ArrayList<Drawable>(); public ImageAdapter(Context c) { mContext = c; TypedArray a = obtainStyledAttributes(R.styleable.Gallery1); mGalleryItemBackground = a.getResourceId( R.styleable.Gallery1_android_galleryItemBackground, 0); a.recycle(); } public void setPlaces(int count) { for (int i = 0; i < count; i++) { mImageIds.add(R.drawable.tournoimg); mImageDrawables.add(null); } } public void setDrawable(String resource, int position) { Drawable image = Drawable.createFromPath(resource); mImageDrawables.add(position, image); } public int getCount() { return mImageIds.size(); } public Object getItem(int position) { return position; } public long getItemId(int position) { return position; } public View getView(int position, View convertView, ViewGroup parent) { ImageView i = new ImageView(mContext); if (mImageDrawables.get(position) == null) i.setImageResource(mImageIds.get(position)); else i.setImageDrawable(mImageDrawables.get(position)); i.setLayoutParams(new Gallery.LayoutParams(60, 78)); i.setScaleType(ImageView.ScaleType.FIT_XY); i.setBackgroundResource(mGalleryItemBackground); return i; } } } and the following Async Task private class FillImages extends AsyncTask<ArrayList<Place>, Void, Void> { protected Void doInBackground(ArrayList<Place>... listplaces) { ArrayList<Place> places = listplaces[0]; Iterator<Place> it = places.iterator(); int position = 0; while (it.hasNext()) { Place p = it.next(); saveImage(p.getImage(), p.getURLImage()); // Gallery g = (Gallery) findViewById(R.id.gallery); mImageAdapter.setDrawable(p.getImage(), position); position++; mImageAdapter.notifyDataSetChanged(); } return (null); } But when i run it i have this error: Caused by: android.view.ViewRoot$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views. Any idea? Thanks

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  • Android: Using onStart() method in Bluetooth application

    - by Nii
    Hello, I am getting a nullpointer exception when my onStart() method is called. Here is the breakdown of my Android app: Opening the app brings a user to the homescreen: The user is then presented with the first 6 icons to choose from. When the user presses the "Sugar" icon it takes them to the SugarTabActivity. The SugarTabActivity is a Tabbed layout with two tabs. I'm concerned with the first tab. The first tab calls the getDefaultAdapter() method in its onCreate() method. Once it calls this, it checks if the bluetooth adapter is null on the phone, and if its null it shows a toast saying "Bluetooth is not available". This works just fine. Then I call the onStart() method. In the onStart() method I check if bluetooth is enabled, and if it isnt, then I start a new activity from the BluetoothAdapter enable bluetooth intent; otherwise, I start my bluetooth service. The exact error I'm getting is 04-19 00:44:45.674: ERROR/AndroidRuntime(225): Caused by: java.lang.NullPointerException 04-19 00:44:45.674: ERROR/AndroidRuntime(225): at com.nii.glucose.Glucose.onStart(Glucose.java:313). Heading Override public void onCreate(Bundle icicle) { super.onCreate(icicle); if(D) Log.d(TAG, "+++ ON CREATE +++"); setContentView(R.layout.glucose_layout); mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); if(mBluetoothAdapter==null){ Toast.makeText(this, "Bluetooth not available", Toast.LENGTH_LONG).show(); //finish(); return; } } Override public void onStart() { super.onStart(); if(D) Log.e(TAG, "++ ON START ++"); // If BT is not on, request that it be enabled. // setupChat() will then be called during onActivityResult if (!mBluetoothAdapter.isEnabled()) { Intent enableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE); startActivityForResult(enableIntent, REQUEST_ENABLE_BT); // Otherwise, setup the chat session } else { if (mGlucoseService == null) mGlucoseService = new BluetoothService(this, mHandler); } } @Override public synchronized void onResume(){ super.onResume(); if(D) Log.e(TAG,"==== ON RESUME ======"); // Performing this check in onResume() covers the case in which BT was // not enabled during onStart(), so we were paused to enable it... // onResume() will be called when ACTION_REQUEST_ENABLE activity returns. if (mGlucoseService != null) { // Only if the state is STATE_NONE, do we know that we haven't started already if (mGlucoseService.getState() == BluetoothService.STATE_NONE) { // Start the Bluetooth chat services mGlucoseService.start(); } } } @Override public synchronized void onPause(){ super.onPause(); //isActive.set(false); if(D) Log.e(TAG,"==== ON PAUSE ======"); } @Override public void onDestroy() { super.onDestroy(); // Stop the Bluetooth chat services if (mGlucoseService != null) mGlucoseService.stop(); if(D) Log.e(TAG, "--- ON DESTROY ---"); }

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  • Is DataAdapter use facade pattern or Adapter pattern.

    - by Krirk
    When i see Update(),Fill() method of DataAdapter object I always think Is DataAdapter use facade pattern ? It looks like behind the scenes It will create Command object, Connection object and execute it for us. Or DataAdapter use Adapter pattern because it is adapter between Dataset and Comamand object ,Connection object ?

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  • Android GridView Custom BaseAdapter ImageView ImageButton OnItemClick doesn´t work

    - by Marek
    i have a problem using a GridView with a CustomAdapter (extends BaseAdapter). any Activity implements the OnItemClickListener. if i use ImageView as item everything works fine, OnItemClick-Events will be fired/catched I have not found a useful example for a GridView with a custom BaseAdapter using ImageButton. Has anyone an idea? Many thanks in advantage! Snippets: class MyActivity extends Activity implements OnItemClickListener { ... @Override public void onCreate() { ... GridView gridview = (GridView) findViewById(R.id.gridview); gridview.setOnItemClickListener(this); gridview.setAdapter(new ImageButtonAdapter(this)); } ... @Override public void onItemClick(AdapterView<?> adapter, View view, int arg2, long arg3) { Log.e("onItemClick()", "arg2=" + arg2 + ", arg3=" + arg3); } } public class ImageButtonAdapter extends BaseAdapter { private Context mContext; public LayoutMenuAdapter(Context c) { mContext = c; } public int getCount() { return mThumbIds.length; } public Object getItem(int position) { return null; } public long getItemId(int position) { return 0; } public View getView(int position, View convertView, ViewGroup parent) { /* IF I USE THIS PART EVERYTHING WORKS FINE */ // ImageView imageView; // if (convertView == null) { // imageView = new ImageView(mContext); // imageView.setLayoutParams(new GridView.LayoutParams(100, 100)); // imageView.setScaleType(ImageView.ScaleType.CENTER_CROP); // imageView.setPadding(0, 0, 0, 0); // imageView.setFocusable(false); // } else { // imageView = (ImageView) convertView; // } // imageView.setImageResource(mThumbIds[position]); // return imageView; /* IF I USE THIS PART NO THE ACTIVITY/LISTENER RECEIVES NO EVENT */ ImageButton imageButton; if (convertView == null) { imageButton = new ImageButton(mContext); imageButton.setLayoutParams(new GridView.LayoutParams(100, 100)); imageButton.setScaleType(ImageView.ScaleType.CENTER_CROP); imageButton.setPadding(0, 0, 0, 0); imageButton.setFocusable(false); } else { imageButton = (ImageButton) convertView; } imageButton.setImageResource(mThumbIds[position]); return imageButton; } // references to images private Integer[] mThumbIds = { R.drawable.media}; }

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  • how to debug "deep" crashes in Android?

    - by eerok512
    Hi All, I've been trying to debug an android crash that is occurring without a Java Stack Trace... Java Stack Trace bugs are very easy for me to fix... but this bug I'm getting seems to be crashing inside the "NDK" or whatever it is the deep internals of Android are called... I've made no modifications to the NDK btw... I just dunno what else to call that layer hehe. Anyway I'm mainly looking for advice on deep-debug methods, rather than help with this specific problem... because I doubt I can post all the source code involved... so really I just need to know how to set breakpoints at the deep layers or whatever other methods there are to trace deep-crashes to their source... so I will briefly describe the bug and then post a LogCat. I have an app with 7 Activities Activity_INTRO Activity_EULA Activity_MAIN Activity_Contact Activity_News Activity_Library Activity_More INTRO is the initiating one... it fades in some company logos... after displaying them for a set time it jumps to the EULA activity... after the user accepts the EULA, it jumps to MAIN... MAIN then creates a TabHost and populates it with the 4 remaining activities now heres the thing... when I click on say, the More tab of the TabHost, the app pauses for a few seconds and then hard-crashes... no java stack trace, but an actual ASM level trace with the registers and IP and stack... the same thing occurs no matter which tab I select, Contact, News, Library, More... all of them crash with the same hard-crash if however I set the manifest to start the app at Activity_MAIN, bypassing the INTRO and EULA, then these crashes do not occur... so something is lingering from those opening activities that is somehow hosing the TabHost'ed Activities... and I'm wondering what the hell that could be... because I'm using finish() on those activites when they need to jump... in fact here is how I'm doing it let me know if you see any bugs: when jumping from INTRO to EULA I do: //Display the EULA Intent newIntent = new Intent (avi, Activity_EULA.class); startActivity (newIntent); finish(); and EULA to MAIN: Intent newIntent = new Intent (this, Activity_Main.class); startActivity (newIntent); finish(); anyway, here is the hard crash log... please let me know if there is some way I can reverse engineer either /system/lib/libcutils.so or /system/lib/libandroid_runtime.so, because I think the crash is happening in one of them... i think its happening in the libandroid_runtime in fact.... anyway on to the log: 12-25 00:56:07.322: INFO/DEBUG(551): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 12-25 00:56:07.332: INFO/DEBUG(551): Build fingerprint: 'generic/sdk/generic/:1.5/CUPCAKE/150240:eng/test-keys' 12-25 00:56:07.362: INFO/DEBUG(551): pid: 722, tid: 723 >>> com.killerapps.chokes <<< 12-25 00:56:07.362: INFO/DEBUG(551): signal 11 (SIGSEGV), fault addr 00000004 12-25 00:56:07.362: INFO/DEBUG(551): r0 00000004 r1 40021800 r2 00000004 r3 ad3296c5 12-25 00:56:07.372: INFO/DEBUG(551): r4 00000000 r5 00000000 r6 ad342da5 r7 41039fb8 12-25 00:56:07.372: INFO/DEBUG(551): r8 100ffcb0 r9 41039fb0 10 41e014a0 fp 00001071 12-25 00:56:07.382: INFO/DEBUG(551): ip ad35b874 sp 100ffc98 lr ad3296cf pc afb045a8 cpsr 00000010 12-25 00:56:07.552: INFO/DEBUG(551): #00 pc 000045a8 /system/lib/libcutils.so 12-25 00:56:07.572: INFO/DEBUG(551): #01 lr ad3296cf /system/lib/libandroid_runtime.so 12-25 00:56:07.582: INFO/DEBUG(551): stack: 12-25 00:56:07.582: INFO/DEBUG(551): 100ffc58 00000000 12-25 00:56:07.592: INFO/DEBUG(551): 100ffc5c 001c5278 [heap] 12-25 00:56:07.602: INFO/DEBUG(551): 100ffc60 000000da 12-25 00:56:07.602: INFO/DEBUG(551): 100ffc64 0016c778 [heap] 12-25 00:56:07.602: INFO/DEBUG(551): 100ffc68 100ffcc8 12-25 00:56:07.602: INFO/DEBUG(551): 100ffc6c 001c5278 [heap] 12-25 00:56:07.612: INFO/DEBUG(551): 100ffc70 427d1ac0 12-25 00:56:07.612: INFO/DEBUG(551): 100ffc74 000000c1 12-25 00:56:07.612: INFO/DEBUG(551): 100ffc78 40021800 12-25 00:56:07.612: INFO/DEBUG(551): 100ffc7c 000000c2 12-25 00:56:07.612: INFO/DEBUG(551): 100ffc80 00000000 12-25 00:56:07.612: INFO/DEBUG(551): 100ffc84 00000000 12-25 00:56:07.622: INFO/DEBUG(551): 100ffc88 00000000 12-25 00:56:07.622: INFO/DEBUG(551): 100ffc8c 00000000 12-25 00:56:07.622: INFO/DEBUG(551): 100ffc90 df002777 12-25 00:56:07.632: INFO/DEBUG(551): 100ffc94 e3a070ad 12-25 00:56:07.632: INFO/DEBUG(551): #00 100ffc98 00000000 12-25 00:56:07.632: INFO/DEBUG(551): 100ffc9c ad3296cf /system/lib/libandroid_runtime.so 12-25 00:56:07.632: INFO/DEBUG(551): 100ffca0 100ffcd0 12-25 00:56:07.642: INFO/DEBUG(551): 100ffca4 ad342db5 /system/lib/libandroid_runtime.so 12-25 00:56:07.642: INFO/DEBUG(551): 100ffca8 410a79d0 12-25 00:56:07.642: INFO/DEBUG(551): 100ffcac ad00e3b8 /system/lib/libdvm.so 12-25 00:56:07.652: INFO/DEBUG(551): 100ffcb0 410a79d0 12-25 00:56:07.652: INFO/DEBUG(551): 100ffcb4 0016bac0 [heap] 12-25 00:56:07.662: INFO/DEBUG(551): 100ffcb8 ad342da5 /system/lib/libandroid_runtime.so 12-25 00:56:07.662: INFO/DEBUG(551): 100ffcbc 40021800 12-25 00:56:07.662: INFO/DEBUG(551): 100ffcc0 410a79d0 12-25 00:56:07.662: INFO/DEBUG(551): 100ffcc4 afe39dd0 12-25 00:56:07.662: INFO/DEBUG(551): 100ffcc8 100ffcd0 12-25 00:56:07.662: INFO/DEBUG(551): 100ffccc ad040a8d /system/lib/libdvm.so 12-25 00:56:07.672: INFO/DEBUG(551): 100ffcd0 41039fb0 12-25 00:56:07.672: INFO/DEBUG(551): 100ffcd4 420000f8 12-25 00:56:07.672: INFO/DEBUG(551): 100ffcd8 ad342da5 /system/lib/libandroid_runtime.so 12-25 00:56:07.672: INFO/DEBUG(551): 100ffcdc 100ffd48 12-25 00:56:07.852: DEBUG/dalvikvm(722): GC freed 367 objects / 15144 bytes in 210ms 12-25 00:56:08.081: DEBUG/InetAddress(722): www.akillerapp.com: 74.86.47.202 (family 2, proto 6) 12-25 00:56:08.242: DEBUG/dalvikvm(722): GC freed 62 objects / 2328 bytes in 122ms 12-25 00:56:08.771: DEBUG/dalvikvm(722): GC freed 245 objects / 11744 bytes in 179ms 12-25 00:56:09.131: INFO/ActivityManager(577): Process com.killerapps.chokes (pid 722) has died. 12-25 00:56:09.171: INFO/WindowManager(577): WIN DEATH: Window{43719320 com.killerapps.chokes/com.killerapps.chokes.Activity_Main paused=false} 12-25 00:56:09.251: INFO/DEBUG(551): debuggerd committing suicide to free the zombie! 12-25 00:56:09.291: DEBUG/Zygote(553): Process 722 terminated by signal (11) 12-25 00:56:09.311: INFO/DEBUG(781): debuggerd: Jun 30 2009 17:00:51 12-25 00:56:09.331: WARN/InputManagerService(577): Got RemoteException sending setActive(false) notification to pid 722 uid 10020

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  • Gobi 2000 WWAN Adapter C#.net SDK

    - by jonhilt
    We have some software running on Windows 7 on a mobile device (Panasonic Toughbook) which needs to initiate a 3g connection to download data. The WWAn adapter in question is a Gobi 2000. Is there any way of controlling the adapter direct from .net or should we fall back on Windows to initiate the connection as required (battery life is important).

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  • Rails: Auto-Detecting Database Adapter

    - by Dex
    The new version of the ar-extensions gem requires that you load the appropriate adapter yourself. On my development side I use mysql, however Heroku uses PostgreSQL. For example, on my development side I need to do this: require 'ar-extensions/adapters/mysql' require 'ar-extensions/import/mysql' How can I audo-detect which adapter to use?

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  • Android GridView - How to change a bitmap dynamically?

    - by Alborz
    Hello I have a gridView which I use to show some pictures on (small thumb of diffrent levels). When the user finishes one level, I would like to change the thumb for that level. (Somehow show that it has been completed). I created two thumbs for each level. One is the original and one that shows that the level is completed. But how can i change the source of the images? The code which I use to draw the images looks like this. The main activity: /** Called when the activity is first created. */ public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.maps); GridView gridview = (GridView) findViewById(R.id.gridview); gridview.setAdapter(new ImageAdapter(this)); gridview.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View v, int position, long id) { //Open the map which was clicked on, if there is one if(position+1 > 1){ Toast.makeText(maps.this, "Level " + (position+1) + " is not yet available!", Toast.LENGTH_SHORT).show(); }else{ Toast.makeText(maps.this, "Opening Level " + (position+1), Toast.LENGTH_SHORT).show(); Intent myIntent = new Intent(v.getContext(), Tutorial2D.class); startActivity(myIntent); } } }); } The ImageAdapter Class: public class ImageAdapter extends BaseAdapter { private Context mContext; public ImageAdapter(Context c) { mContext = c; } public int getCount() { return mThumbIds.length; } public Object getItem(int position) { return null; } public long getItemId(int position) { return 0; } // create a new ImageView for each item referenced by the Adapter public View getView(int position, View convertView, ViewGroup parent) { ImageView imageView; if (convertView == null) { // if it's not recycled, initialize some attributes imageView = new ImageView(mContext); imageView.setLayoutParams(new GridView.LayoutParams(85, 85)); imageView.setScaleType(ImageView.ScaleType.CENTER_CROP); imageView.setPadding(8, 8, 8, 8); } else { imageView = (ImageView) convertView; } //Changing imageView.setImageResource(mThumbIds[position]); return imageView; } // references to our images private Integer[] mThumbIds = { R.drawable.map1, R.drawable.map2, R.drawable.map3, R.drawable.map4, R.drawable.map5, R.drawable.map6, R.drawable.map7, R.drawable.map8, R.drawable.map9, R.drawable.map10, R.drawable.map11, R.drawable.map12, R.drawable.map13, R.drawable.map14, R.drawable.map15, R.drawable.map16, R.drawable.map17, R.drawable.map18, R.drawable.map19 }; }

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  • Changing tabs in android

    - by Pavel
    Hi guys. Can someone please tell me how to change tab by clicking on element INSIDE the tab? I already tried it with global data. The code looks like this: public class Tabs extends TabActivity { int tabNumber = 0; private TabHost tabHost; int returnedTabNumber = 0; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Resources res = getResources(); // Resource object to get Drawables tabHost = getTabHost(); // The activity TabHost TabHost.TabSpec spec; // Resusable TabSpec for each tab Intent intent; // Reusable Intent for each tab // Create an Intent to launch an Activity for the tab (to be reused) intent = new Intent().setClass(this, Tribocracy.class); // Initialize a TabSpec for each tab and add it to the TabHost spec = tabHost.newTabSpec("map").setIndicator("Map", res.getDrawable(R.drawable.ic_tab_artists)) .setContent(intent); tabHost.addTab(spec); // Do the same for the other tabs intent = new Intent().setClass(this, Areas.class); spec = tabHost.newTabSpec("areas").setIndicator("Areas", res.getDrawable(R.drawable.ic_tab_albums)) .setContent(intent); tabHost.addTab(spec); // Do the same for the other tabs intent = new Intent().setClass(this, Settings.class); spec = tabHost.newTabSpec("settings").setIndicator("Settings", res.getDrawable(R.drawable.ic_tab_albums)) .setContent(intent); tabHost.addTab(spec); tabHost.setCurrentTab(tabNumber); } protected void onResume() { super.onResume(); GlobalData globalData = ((GlobalData)getApplicationContext()); returnedTabNumber = globalData.getTabNumber(); tabHost.setCurrentTab(returnedTabNumber); } } The global adapter looks like this: public class GlobalData extends Application { //---------------------------------------------------- private int Point1; //define the vars here private int Point2; //define the vars here private int Point3; //define the vars here private int Point4; //define the vars here private int Point5; //define the vars here private int Point6; //define the vars here private int tabNumber; public int getTabNumber() //getter of the value { return tabNumber; } public int setTabNumber(int number) //setter of the value { tabNumber = number; return tabNumber; } } Now when I'm trying to change tab in my ListActivity tab by clicking on one of the items it doesn't do anything and stays on the ListActivity tab. Perhaps I shouldn't use onResume() here. Basically I want to go to first tab when I click on one of the items in the list. Please help!

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  • what is a virtual adapter

    - by numerical25
    I hear the term virtual adapter from time to time. But not exactly sure what it is. I can't exactly find a good definition online. Is there an exact definition for a virtual adapter. If so, what is it. Or what does it usually mean ?

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  • Android ListView item highlight programmatically

    - by dhomes
    Hi all, I know it's been asked around but I haven't found quite the answer yet (new to Android so sorry about the ignorance) my app's launch Activity has an EditText (called searchbox) , a ListView (designations) and a Spinner (types) I use the EditText as a searchbox, I have to pass the string through a custom editing to make searching more flexible. After that I match that against the closest approximation I find in 'designations' and do designations.setSelection(j); As expected, this sets the desired item to the top of designations. But I can find a way to highlight it via code. NOW, i do know that if the device is in touch mode the highlighting of a selected item won't occur. So the last 4 lines of my searchbox's onTextChanged event are: designations.setFocusable(true); designations.setFocusableInTouchMode(true); if (match==true) designations.setSelection(j); if (st.length()==0) designations.setSelection(0); to no avail. now, i don't have any code on searchbox's afterTextChanged(Editable s); so could anyone give me a clue on this? regards ~dh

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  • Android- Using DexClassLoader to load apk file.

    - by Craig O Connor
    Hi guys, I've hit a bit of a wall. Any help would be appreciated. I have an app that I want to use DexClassLoader to load another apk file. Here is my code: DexClassLoader dLoader = new DexClassLoader("/sdcard/download/test.apk","/sdcard/download",null,ClassLoader.getSystemClassLoader().getParent()); Class calledClass = dLoader.loadClass("com.test.classname"); Intent it=new Intent(this, calledClass); it.setClassName("com.test", "com.test.classname"); startActivity(it); Now I had already installed test.apk so when I ran the above code it worked fine and launched the application. However I want to be able to run this without test.apk being installed already (as that would defeat the entire point of the application) . So I uninstalled it and when I ran the my app again I get this error: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.test/com.test.classname}; have you declared this activity in your AndroidManifest.xml. So I'm a bit stumped here. This activity is declared in the Manifest of the apk I am trying to run. I can't declare it in my applications Manifest. Any ideas? Thanks, Craig

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  • OutofMemoryError: bitmap size exceeds VM budget (Android)

    - by Chrispix
    Getting an Exception in the BitmapFactory. Not sure what is the issue. (Well I can guess the issue, but not sure why its happening) ERROR/AndroidRuntime(7906): java.lang.OutOfMemoryError: bitmap size exceeds VM budget ERROR/AndroidRuntime(7906): at android.graphics.BitmapFactory.decodeFile(BitmapFactory.java:295) My code is pretty straight forward. I defined an XML layout w/ a default image. I try to load a bm on the SDCard (if present - it is). If not it shows the default image. Anyway.. Here is code : public class showpicture extends Activity { public void onCreate(Bundle savedInstanceState) { /** Remove menu/status bar **/ requestWindowFeature(Window.FEATURE_NO_TITLE); final Window win = getWindow(); win.setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN); Bitmap bm; super.onCreate(savedInstanceState); setContentView(R.layout.showpicture); try { ImageView mImageButton = (ImageView)findViewById(R.id.displayPicture); bm = Bitmap.createScaledBitmap(BitmapFactory.decodeFile("/sdcard/dcim/Camera/20091018203339743.jpg"),100, 100, true); parkImageButton.setImageBitmap(bm); } catch (IllegalArgumentException ex) { Log.d("MYAPP",ex.getMessage()); } catch (IllegalStateException ex) { It fails on the bm=Bitmap.createScaledBitmap any thoughts? I did some research on the forums, and it pointed to this post I just don't know why it is not working. Any help would be great! Thanks, Chris.

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  • How to display ppt file in Android views using Docx4j

    - by Ganesh
    I am working on Android and using docx4j to view the docx,pptx and xlsx files into my application. I am unable to view the ppt files . I am getting compile time error at SvgExporter class. which is not there in docx4j library. Can any one help me out to get the SvgExporter class library and build my application and get the Svghtml to load on webview for ppt files. my code is as follows. String inputfilepath = System.getProperty("user.dir") + "/sample-docs/pptx/pptx-basic.xml"; // Where to save images SvgExporter.setImageDirPath(System.getProperty("user.dir") + "/sample-docs/pptx/"); PresentationMLPackage presentationMLPackage = (PresentationMLPackage)PresentationMLPackage.load(new java.io.File(inputfilepath)); // TODO - render slides in document order! Iterator partIterator = presentationMLPackage.getParts().getParts().entrySet().iterator(); while (partIterator.hasNext()) { Map.Entry pairs = (Map.Entry)partIterator.next(); Part p = (Part)pairs.getValue(); if (p instanceof SlidePart) { System.out.println( SvgExporter.svg(presentationMLPackage, (SlidePart)p) ); } } // NB: file suffix must end with .xhtml in order to see the SVG in a browser }

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  • Android, sending XML via HTTP POST (SOAP)

    - by Intosia
    Hi, I would like to invoke a webservice via Android. I need to POST some XML to a URL via HTTP. I found this snipped for sending a POST, but i dont know how to include/add the XML data itself. public void postData() { // Create a new HttpClient and Post Header HttpClient httpclient = new DefaultHttpClient(); HttpPost httppost = new HttpPost("http://10.10.4.35:53011/"); try { // Add your data List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2); nameValuePairs.add(new BasicNameValuePair("Content-Type", "application/soap+xml")); httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); // Where/how to add the XML data? // Execute HTTP Post Request HttpResponse response = httpclient.execute(httppost); } catch (ClientProtocolException e) { // TODO Auto-generated catch block } catch (IOException e) { // TODO Auto-generated catch block } } This is the complete POST message that i need to imitate: POST /a8103e90-f1e3-11dd-bfdb-8b1fcff1a110 HTTP/1.1 Host: 10.10.4.35:53011 Content-Type: application/soap+xml Content-Length: 602 <?xml version='1.0' encoding='UTF-8' ?> <s12:Envelope xmlns:s12="http://www.w3.org/2003/05/soap-envelope" xmlns:wsa="http://schemas.xmlsoap.org/ws/2004/08/addressing"> <s12:Header> <wsa:MessageID>urn:uuid:fc061d40-3d63-11df-bfba-62764ccc0e48</wsa:MessageID> <wsa:Action>http://schemas.xmlsoap.org/ws/2004/09/transfer/Get</wsa:Action> <wsa:To>urn:uuid:a8103e90-f1e3-11dd-bfdb-8b1fcff1a110</wsa:To> <wsa:ReplyTo> <wsa:Address>http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous</wsa:Address> </wsa:ReplyTo> </s12:Header> <s12:Body /> </s12:Envelope>

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  • Streaming to the Android MediaPlayer

    - by Rob Szumlakowski
    Hi. I'm trying to write a light-weight HTTP server in my app to feed dynamically generated MP3 data to the built-in Android MediaPlayer. I am not permitted to store my content on the SD card. My input data is essentially of an infinite length. I tell MediaPlayer that its data source should basically be something like "http://localhost/myfile.mp3". I've a simple server set up that waits for MediaPlayer to make this request. However, MediaPlayer isn't very cooperative. At first, it makes an HTTP GET and tries to grab the whole file. It times out if we try and simply dump data into the socket so we tried using the HTTP Range header to write data in chunks. MediaPlayer doesn't like this and doesn't keep requesting the subsequent chunks. Has anyone had any success streaming data directly into MediaPlayer? Do I need to implement an RTSP or Shoutcast server instead? Am I simply missing a critical HTTP header? What strategy should I use here? Rob Szumlakowski

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  • Help: Android paint/canvas issue; drawing smooth curves

    - by Wrapper
    How do I get smooth curves instead of dots or circles, when I draw with my finger on the touch screen, in Android? I am using the following code- public class DrawView extends View implements OnTouchListener { private static final String TAG = "DrawView"; List<Point> points = new ArrayList<Point>(); Paint paint = new Paint(); public DrawView(Context context) { super(context); setFocusable(true); setFocusableInTouchMode(true); this.setOnTouchListener(this); paint.setColor(Color.WHITE); paint.setAntiAlias(true); } @Override public void onDraw(Canvas canvas) { for (Point point : points) { canvas.drawCircle(point.x, point.y, 5, paint); // Log.d(TAG, "Painting: "+point); } } public boolean onTouch(View view, MotionEvent event) { // if(event.getAction() != MotionEvent.ACTION_DOWN) // return super.onTouchEvent(event); Point point = new Point(); point.x = event.getX(); point.y = event.getY(); points.add(point); invalidate(); Log.d(TAG, "point: " + point); return true; } } class Point { float x, y; @Override public String toString() { return x + ", " + y; } }

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  • Android custom media controller using vidtry

    - by Mathias Lin
    I want to use a custom media controller in my Android app and therefore looking at the vidtry code (http://github.com/commonsguy/vidtry), especially Player.java: The sample works fine as it comes. But I want the sample to play the fixed video automatically on app startup (so I don't want to enter a URL). I added: @Override public void onStart() { super.onStart(); address.setText("/sdcard/mydata/category/1/video_agkkr6me.mp4"); go.setEnabled(true); onGo.onClick(go); } Strange thing here is that if I run the app, the audio of the video plays but the image doesn't show. Everything else works fine (progress bar, etc.). I can't figure out the difference between the manual click on the go-button and the programmatic one. I looked at the code and didn't see any difference that might occur between manual and programmatic click. I checked if any elements (esp. surface) might be hidden, but it's not. I even tried a surface.setVisibility(View.INVISIBLE); surface.setVisibility(View.VISIBLE); in case some issue with the redrawing, but no difference. The video image does show when I manually hit the go button, but just not on start up automatically.

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  • Overlay only draws line between first 2 GPS points in Android

    - by LordSnoutimus
    Hi, I am experiencing an unusual error using ItemizedOverlay in Android. I am creating a GPS tracking device that plots a route between waypoints stored in a database. When I provide the first two sets of longitude and latitude points through the emulator in Eclipse, it draws a red line just how I want it, but if I send another GPS point, it animates to the point, but does not draw a line from the last point. public class MyOverlay extends ItemizedOverlay { // private Projection projection; private Paint linePaint; private Vector points; public MyOverlay(Drawable defaultMarker) { super(defaultMarker); points = new Vector<GeoPoint>(); //set colour, stroke width etc. linePaint = new Paint(); linePaint.setARGB(255, 255, 0, 0); linePaint.setStrokeWidth(3); linePaint.setDither(true); linePaint.setStyle(Style.FILL); linePaint.setAntiAlias(true); linePaint.setStrokeJoin(Paint.Join.ROUND); linePaint.setStrokeCap(Paint.Cap.ROUND); } public void addPoint(GeoPoint point) { points.addElement(point); } public void draw(Canvas canvas, MapView view, boolean shadow) { int size = points.size(); Point lastPoint = new Point(); if(size == 0) return; view.getProjection().toPixels(points.get(0), lastPoint); Point point = new Point(); for(int i = 1; i<size; i++){ view.getProjection().toPixels(points.get(i), point); canvas.drawLine(lastPoint.x, lastPoint.y, point.x, point.y, linePaint); lastPoint = point; } } @Override protected OverlayItem createItem(int arg0) { // TODO Auto-generated method stub return null; } @Override public int size() { // TODO Auto-generated method stub return 0; } }

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  • Passing binary blob through an Android content provider

    - by velocityb0y
    I have a content provider that is custom to my set of Android applications, and one of the things it needs to expose is a small (20-30k) byte array. The uri for these blobs looks like content://my.authority/blob/# where # is the row number; the resulting cursor has the standard _id column and a data column. I'm using a MatrixCursor in the provider's query method: byte[] byteData = getMyByteData(); MatrixCursor mc = new MatrixCursor(COLUMNS); mc.addRow(new Object[] { id, byteData }); Later, in the application consuming the data, I do Cursor c = managedQuery(uri, null, null, null, null); c.moveToFirst(); byte[] data = c.getBlob(c.getColumnIndexOrThrow("data")); However, data does not contain the contents of my original byte array; rather, it contains something like "[B@435cc518", which looks more like the address of the array than the contents. I tried wrapping the byte array in an implementation of java.sql.Blob, figuring that it might be looking for that since the content provider subsystem was written to be easy to use with SQLite, but it didn't help. Has anyone gotten this to work? If the data was in the file system, there are methods in ContentProvider that I could use to provide a marshalled InputStream to the client, but the data I'm trying to send back lives as a resource in the content provider's APK.

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  • Android Live Wallpaper: waitForCondition(ReallocateCondition)

    - by jstatz
    I've been developing a live wallpaper using GLWallpaperService, and have gotten good results overall. It runs rock-solid in the emulator and looks good. I've dealt with OpenGL many times before so have a solid command of how to do things... unfortunately I'm having a hell of a time getting this to actually be stable on the actual hardware. The basic symption occurs when you slide the physical keyboard on a Motorola Droid in and out a few times. This causes the wallpaper to get destroyed/recreated several times in quick succession -- which would be fine, as I have my assets clearing in onDestroy and reloading in onSurfaceChanged. The problem is after a few iterations of this, (four or five, maybe) the calls to onSurfaceChanged completely stop, and i get an endless string of this printed to the log: 04-02 00:53:18.088: WARN/SharedBufferStack(1032): waitForCondition(ReallocateCondition) timed out (identity=337, status=0). CPU may be pegged. trying again. Is there something I should be implementing here aside from the Android-typical onSurfaceCreated/onSurfaceChanged/onSurfaceDestroyed triumvirate? Browsing through the WallpaperService and WallpaperRenderer classes doesn't pop up anything obvious to me.

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  • Android Activity is displayed after user unlocks the screen

    - by Dave
    Hi, I was wondering if anyone understood how to make your application be displayed when you unlock the screen. I have an application where the user turns on a Bluetooth device, it connects to the phone, and the user should be presented with a UI. Having them hunt for the app or using the notification menu is not a workable option (too much work and not the obvious behavior). The problem is that: When the screen is unlocked: - you can popup the activity from the background service when Bluetooth connects to a device - User is happy because the UI is right there When the screen is locked: - The application gets started but is destroyed - User unlocks the phone and nothing is there but the homescreen One work around would be to disable the keyguard when the application gets woken up but the nuclear option is a pretty bad option. PS: I know the standard Android assumption is that you shouldn't do this. In the normal case this behavior is fine, but in this case I explicitly did something I want the phone to respond without adding more work for the user to do. As per Google's guidelines if you don't like this behavior there can be an option for you to turn this off or you can not use the application.

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  • Roadmap to Android development

    - by Matthew
    Hello, I've done a little research, and am interested in developing for Android. I've never programmed before, and have no idea how to go from zero experience to developing for a mobile device. My interest is in eventually making some sort of 2d game. Is there a lesson plan for starting from the ground up? I would think one would need to learn the Java language to start. Looking at the Sun website, it's a bit daunting. Is there a book, specifically, that would wrap up this knowledge in a bit of a directed lesson plan? I'm not sure if opengl-es is what would be required for 2d games. I've done a little research on this, and it's even far more daunting than Java itself. I can't even begin to figure out where to start with even just opengl, sans -es. My best guess would be that I need further knowledge in Java to continue with this, but even still, is it possible to learn concurrently with Java?

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  • part of contact are repeated after each writing the same contact (Android 2.0+)

    - by Bogus
    Hello, I met this problem at writing contacts by API for Android 2.0 or greater. Each time I write the same contact which already exist in my account (Google account) I got some part of contact aggregated ok but other did not. For example fields like FN, N, ORG, TITLE always are in one copy but TEL, EMAIL, ADR are added extra so after 2nd writing the same contact I have 2 copy the same TEL or EMAIL. How to force API engine to not repeate existed data ? Code: ArrayList ops = new ArrayList(); ops.add(ContentProviderOperation.newInsert(ContactsContract.RawContacts.CONTENT_URI) .withValue(ContactsContract.RawContacts.ACCOUNT_TYPE, accountType) .withValue(ContactsContract.RawContacts.ACCOUNT_NAME, accountName) .build()); ... // adding phone number ContentProviderOperation.Builder builder = ContentProviderOperation.newInsert(ContactsContract.Data.CONTENT_URI); builder.withValueBackReference(ContactsContract.Data.RAW_CONTACT_ID, 0); builder.withValue(ContactsContract.Data.MIMETYPE, ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE); builder.withValue(ContactsContract.CommonDataKinds.Phone.NUMBER, phoneValue); builder.withValue(ContactsContract.CommonDataKinds.Phone.TYPE, phoneType); // work/home builder.withValue(ContactsContract.CommonDataKinds.Phone.LABEL, phoneLabel); ops.add(builder.build()); ... try { contentResolver.applyBatch(ContactsContract.AUTHORITY, ops); } catch (Exception e) { // } I tried add: AGGREGATION_MODE on AGGREGATION_MODE_DISABLED. but it changed nothing. I will glad for any hint in this case. BR, Bogus

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